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Electrically Conductive Highly Elastic Polyamide/Lycra Fabric Treated with PEDOT:PSS and Polyurethane
University of Borås, Faculty of Textiles, Engineering and Business. (Textile Materials Technology)ORCID iD: 0000-0002-0781-319X
Chalmers University of Technology.ORCID iD: 0000-0002-3270-5123
Soochow University.ORCID iD: 0000-0003-2218-1693
Soochow University. (Textile)
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2019 (English)In: Journal of Materials Science, ISSN 0022-2461, E-ISSN 1573-4803, Vol. 54, no 13, p. 9591-9602Article in journal (Refereed) Published
Sustainable development
According to the author(s), the content of this publication falls within the area of sustainable development.
Abstract [en]

Conductive elastic fabrics are desirable in wearable electronics and related applications. Highly elastic conductive polyamide/lycra knitted fabric was prepared using intrinsically conductive polymer poly (3, 4-ethylenedioxythiophene) (PEDOT) blended with polyelectrolyte poly (styrene sulfonate) (PSS) using easily scalable coating and immersion methods. The effects of these two methods of treatments on uniformity, electromechanical property, stretchability, and durability were investigated. Different grades of waterborne polyurethanes (PU) were employed in different concentrations to improve the coating and adhesion of the PEDOT:PSS on the fabric. The immersion method gave better uniform treatment, high conductivity, and durability against stretching and cyclic tension than the coating process. The surface resistance increased from ~1.7 and ~6.4 Ω/square at 0% PU to ~3.7 and ~12.6 Ω/square at 50% PU for immersion and coating methods, respectively. The treatment methods as well as the acidic PEDOT:PSS did not affect the mechanical properties of the fabric and the fabric show high strain at break of ~650% and remain conductive until break. Finally, to assess the practical applicability of the treated fabric for wearable e-textiles, the change in surface resistance was assessed by cyclically stretching 10 times at 100% strain and washing in a domestic laundry for 10 cycles. The resistance increases only by a small amount when samples were stretched cyclically at 100% strain and the samples show good durability against washing.

Place, publisher, year, edition, pages
Springer Publishing Company, 2019. Vol. 54, no 13, p. 9591-9602
Keywords [en]
Polyamide/lycra, PEDOT:PSS, conductive fabric, immersion, coating
National Category
Engineering and Technology
Research subject
Textiles and Fashion (General)
Identifiers
URN: urn:nbn:se:hb:diva-15927DOI: 10.1007/s10853-019-03519-3OAI: oai:DiVA.org:hb-15927DiVA, id: diva2:1301340
Projects
Quality inspection and evaluation of functional or smart textile fabric surface by skin contact mechanicsAvailable from: 2019-04-01 Created: 2019-04-01 Last updated: 2019-05-13Bibliographically approved

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Tadesse, Melkie Getnet

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